Hello Soreen have been having a look for information re Sarah Edwards but without a name for one of her parents its really impossible to be sure.
Did she go on to marry in Wigan/ England if so if you have access to her marriage certificate her fathers name should be on there.
However the two closest I have been able to find so far are:-
Sara Edwards birth 21/12/1863 Baptised 29/12/1863 Child of Joseph Edwards and Marianna Nee Murphy married 9/1/1859
Sarah Edwards Baptised 12/10/1858 child of AAronis (Aaron)and Roseanna Murphy, Marriage Aron Edwards and Rose Murphy30/7/1855,
I currently Have a Worldwide ancestry subscription bought for me as a gift which has a lot more Irish records than previously